78491140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 211955184

約数和(自身を除く): 133464044

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 61, 65, 70, 91, 98, 101, 122, 130, 140, 182, 196, 202, 244, 245, 260, 305, 364, 404, 427, 455, 490, 505, 610, 637, 707, 793, 854, 910, 980, 1010, 1220, 1274, 1313, 1414, 1586, 1708, 1820, 2020, 2135, 2548, 2626, 2828, 2989, 3172, 3185, 3535, 3965, 4270, 4949, 5252, 5551, 5978, 6161, 6370, 6565, 7070, 7930, 8540, 9191, 9898, 11102, 11956, 12322, 12740, 13130, 14140, 14945, 15860, 18382, 19796, 22204, 24644, 24745, 26260, 27755, 29890, 30805, 36764, 38857, 43127, 45955, 49490, 55510, 59780, 61610, 64337, 77714, 80093, 86254, 91910, 98980, 111020, 123220, 128674, 155428, 160186, 172508, 183820, 194285, 215635, 257348, 301889, 320372, 321685, 388570, 400465, 431270, 560651, 603778, 643370, 777140, 800930, 862540, 1121302, 1207556, 1286740, 1509445, 1601860, 2242604, 2803255, 3018890, 3924557, 5606510, 6037780, 7849114, 11213020, 15698228, 19622785, 39245570, 78491140]

約数ペア:

[(1, 78491140), (2, 39245570), (4, 19622785), (5, 15698228), (7, 11213020), (10, 7849114), (13, 6037780), (14, 5606510), (20, 3924557), (26, 3018890), (28, 2803255), (35, 2242604), (49, 1601860), (52, 1509445), (61, 1286740), (65, 1207556), (70, 1121302), (91, 862540), (98, 800930), (101, 777140), (122, 643370), (130, 603778), (140, 560651), (182, 431270), (196, 400465), (202, 388570), (244, 321685), (245, 320372), (260, 301889), (305, 257348), (364, 215635), (404, 194285), (427, 183820), (455, 172508), (490, 160186), (505, 155428), (610, 128674), (637, 123220), (707, 111020), (793, 98980), (854, 91910), (910, 86254), (980, 80093), (1010, 77714), (1220, 64337), (1274, 61610), (1313, 59780), (1414, 55510), (1586, 49490), (1708, 45955), (1820, 43127), (2020, 38857), (2135, 36764), (2548, 30805), (2626, 29890), (2828, 27755), (2989, 26260), (3172, 24745), (3185, 24644), (3535, 22204), (3965, 19796), (4270, 18382), (4949, 15860), (5252, 14945), (5551, 14140), (5978, 13130), (6161, 12740), (6370, 12322), (6565, 11956), (7070, 11102), (7930, 9898), (8540, 9191)]